import Foundation import Capacitor import AVFoundation /** * Please read the Capacitor iOS Plugin Development Guide * here: https://capacitor.ionicframework.com/docs/plugins/ios */ @objc(CameraPreview) public class CameraPreview: CAPPlugin { var previewView:UIView! var cameraPosition = String() let cameraController = CameraController() var x: CGFloat? var y: CGFloat? var width: CGFloat? var height: CGFloat? var paddingBottom: CGFloat? var rotateWhenOrientationChanged: Bool? var toBack: Bool? var storeToFile: Bool? var enableZoom: Bool? var highResolutionOutput: Bool = false @objc func rotated() { let height = self.paddingBottom != nil ? self.height! - self.paddingBottom!: self.height!; if UIApplication.shared.statusBarOrientation.isLandscape { self.previewView.frame = CGRect(x: self.y!, y: self.x!, width: max(height, self.width!), height: min(height, self.width!)) self.cameraController.previewLayer?.frame = self.previewView.frame } if UIApplication.shared.statusBarOrientation.isPortrait { if (self.previewView != nil && self.x != nil && self.y != nil && self.width != nil && self.height != nil) { self.previewView.frame = CGRect(x: self.x!, y: self.y!, width: min(height, self.width!), height: max(height, self.width!)) } self.cameraController.previewLayer?.frame = self.previewView.frame } cameraController.updateVideoOrientation() } @objc func start(_ call: CAPPluginCall) { self.cameraPosition = call.getString("position") ?? "rear" self.highResolutionOutput = call.getBool("enableHighResolution") ?? false self.cameraController.highResolutionOutput = self.highResolutionOutput; if call.getInt("width") != nil { self.width = CGFloat(call.getInt("width")!) } else { self.width = UIScreen.main.bounds.size.width } if call.getInt("height") != nil { self.height = CGFloat(call.getInt("height")!) } else { self.height = UIScreen.main.bounds.size.height } self.x = call.getInt("x") != nil ? CGFloat(call.getInt("x")!)/UIScreen.main.scale: 0 self.y = call.getInt("y") != nil ? CGFloat(call.getInt("y")!)/UIScreen.main.scale: 0 if call.getInt("paddingBottom") != nil { self.paddingBottom = CGFloat(call.getInt("paddingBottom")!) } self.rotateWhenOrientationChanged = call.getBool("rotateWhenOrientationChanged") ?? true self.toBack = call.getBool("toBack") ?? false self.storeToFile = call.getBool("storeToFile") ?? false self.enableZoom = call.getBool("enableZoom") ?? false AVCaptureDevice.requestAccess(for: .video, completionHandler: { (granted: Bool) in guard granted else { call.reject("permission failed"); return } DispatchQueue.main.async { if (self.cameraController.captureSession?.isRunning ?? false) { call.reject("camera already started") } else { self.cameraController.prepare(cameraPosition: self.cameraPosition){error in if let error = error { print(error) call.reject(error.localizedDescription) return } let height = self.paddingBottom != nil ? self.height! - self.paddingBottom!: self.height!; self.previewView = UIView(frame: CGRect(x: self.x ?? 0, y: self.y ?? 0, width: self.width!, height: height)) self.webView?.isOpaque = false self.webView?.backgroundColor = UIColor.clear self.webView?.scrollView.backgroundColor = UIColor.clear self.webView?.superview?.addSubview(self.previewView) if (self.toBack!) { self.webView?.superview?.bringSubviewToFront(self.webView!) } try? self.cameraController.displayPreview(on: self.previewView) let frontView = self.toBack! ? self.webView : self.previewView; self.cameraController.setupGestures(target: frontView ?? self.previewView, enableZoom: self.enableZoom!) if (self.rotateWhenOrientationChanged == true) { NotificationCenter.default.addObserver(self, selector: #selector(CameraPreview.rotated), name: UIDevice.orientationDidChangeNotification, object: nil) } call.resolve() } } } }); } @objc func flip(_ call: CAPPluginCall) { do { try self.cameraController.switchCameras() call.resolve() } catch { call.reject("failed to flip camera") } } @objc func stop(_ call: CAPPluginCall) { DispatchQueue.main.async { if (self.cameraController.captureSession?.isRunning ?? false) { self.cameraController.captureSession?.stopRunning() self.previewView.removeFromSuperview() self.webView?.isOpaque = true call.resolve() } else { call.reject("camera already stopped") } } } // Get user's cache directory path @objc func getTempFilePath() -> URL { let path = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask)[0] let identifier = UUID() let randomIdentifier = identifier.uuidString.replacingOccurrences(of: "-", with: "") let finalIdentifier = String(randomIdentifier.prefix(8)) let fileName="cpcp_capture_"+finalIdentifier+".jpg" let fileUrl=path.appendingPathComponent(fileName) return fileUrl } @objc func capture(_ call: CAPPluginCall) { DispatchQueue.main.async { let quality: Int? = call.getInt("quality", 85) self.cameraController.captureImage { (image, error) in guard let image = image else { print(error ?? "Image capture error") guard let error = error else { call.reject("Image capture error") return } call.reject(error.localizedDescription) return } let imageData: Data? if (self.cameraController.currentCameraPosition == .front) { let flippedImage = image.withHorizontallyFlippedOrientation() imageData = flippedImage.jpegData(compressionQuality: CGFloat(quality!/100)) } else { imageData = image.jpegData(compressionQuality: CGFloat(quality!/100)) } if (self.storeToFile == false){ let imageBase64 = imageData?.base64EncodedString() call.resolve(["value": imageBase64!]) }else{ do{ let fileUrl=self.getTempFilePath() try imageData?.write(to:fileUrl) call.resolve(["value":fileUrl.absoluteString]) }catch{ call.reject("error writing image to file") } } } } } @objc func captureSample(_ call: CAPPluginCall) { DispatchQueue.main.async { let quality: Int? = call.getInt("quality", 85) self.cameraController.captureSample { image, error in guard let image = image else { print("Image capture error: \(String(describing: error))") call.reject("Image capture error: \(String(describing: error))") return } let imageData: Data? if (self.cameraPosition == "front") { let flippedImage = image.withHorizontallyFlippedOrientation() imageData = flippedImage.jpegData(compressionQuality: CGFloat(quality!/100)) } else { imageData = image.jpegData(compressionQuality: CGFloat(quality!/100)) } if (self.storeToFile == false){ let imageBase64 = imageData?.base64EncodedString() call.resolve(["value": imageBase64!]) } else { do { let fileUrl = self.getTempFilePath() try imageData?.write(to:fileUrl) call.resolve(["value": fileUrl.absoluteString]) } catch { call.reject("Error writing image to file") } } } } } @objc func getSupportedFlashModes(_ call: CAPPluginCall) { do { let supportedFlashModes = try self.cameraController.getSupportedFlashModes() call.resolve(["result": supportedFlashModes]) } catch { call.reject("failed to get supported flash modes") } } @objc func setFlashMode(_ call: CAPPluginCall) { guard let flashMode = call.getString("flashMode") else { call.reject("failed to set flash mode. required parameter flashMode is missing") return } do { var flashModeAsEnum: AVCaptureDevice.FlashMode? switch flashMode { case "off" : flashModeAsEnum = AVCaptureDevice.FlashMode.off case "on": flashModeAsEnum = AVCaptureDevice.FlashMode.on case "auto": flashModeAsEnum = AVCaptureDevice.FlashMode.auto default: break; } if flashModeAsEnum != nil { try self.cameraController.setFlashMode(flashMode: flashModeAsEnum!) } else if(flashMode == "torch") { try self.cameraController.setTorchMode() } else { call.reject("Flash Mode not supported") return } call.resolve() } catch { call.reject("failed to set flash mode") } } @objc func startRecordVideo(_ call: CAPPluginCall) { DispatchQueue.main.async { let quality: Int? = call.getInt("quality", 85) self.cameraController.captureVideo { (image, error) in guard let image = image else { print(error ?? "Image capture error") guard let error = error else { call.reject("Image capture error") return } call.reject(error.localizedDescription) return } //self.videoUrl = image call.resolve(["value":image.absoluteString]) } } } @objc func stopRecordVideo(_ call: CAPPluginCall) { self.cameraController.stopRecording { (error) in } } }